FemtoClock® 680MHz Crystal-to-3.3V Differential LVPECL Frequency Synthesizer

GENERAL DESCRIPTION The 843202I is a 2 output LVPECL Synthesizer optimized to generate Gigabit Ethernet and SONET reference clock frequencies and is a member of the family of high performance clock solutions from IDT. Using a 19.44MHz and 25MHz, 18pF parallel resonant crystal, 155.52MHz and 1

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FemtoClock 680MHz, Crystal-to-3.3V Differential LVPECL Frequency Synthesizer

The 843202I is a 2 output LVPECL synthesizer optimized to generate Gigabit Ethernet and SONET reference clock frequencies. Using a 19.44MHz and 25MHz, 18pF parallel resonant crystal, 155.52MHz and 156.25MHz frequencies can be generated. The part also allows the use of a recovered clock at QB output. Two 3.3V LVPECL outputs\nSelectable crystal oscillator interface or one differential recovered clock inputs\nSupports the following output frequencies: 155.52MHz and 156.25MHz\nVCO range: 560MHz - 680MHz\nRMS phase jitter @ 155.52MHz, using a 19.44MHz crystal (12kHz – 1.3MHz): 0.86ps (typical)\nRMS ;

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